$base-color: #ff0000;
$base-color-hsl: hsl(0, 100, 50%);

body {
  // adjust-color($color: #000000, $red: 1, $green: 2, $blue: 3, $hue: 0, $saturation: 0%, $lightness: 0%, $alpha: 1.0);
  // deg 角度
  background-color: adjust-color($base-color-hsl, 137deg);
  color: adjust-color($base-color, 137deg);
}